I. Model Breakdown

CSB01.1C - S3 - ENS - NNN - L1 - S - NN - FW

CSB01.1C: CSB01 series, version 01.1, C = configurable (with expansion slot)

S3: Main communication = SERCOS III (dual RJ45, 100 Mbps), hard real-time bus

ENS: Encoder 1 (motor end) = 12V, Hiperface/1Vpp/TTL/IndraDyn fully compatible

NNN: No any expansion module (no analog input, no second encoder, no simulation output)

L1: Safety = Start Interlock (Safe Start Interlock), EN60204-1 stop category 0, not STO

S: Panel = Standard single-line LED + 4 keys

NN: Special function = None

FW: Pre-installed official firmware + authorization, plug-and-play

II. Key Points of L1 Safety Function (Important Distinctions)

L1 = Start Interlock (SSI): Only prevents incorrect startup, cuts off control circuit when power off / emergency stop, motor may still have torque; not STO (safety torque disconnection)

Compare with L2: L2 = STO (safety torque disconnection), SIL3/PL e, directly cuts off power circuit, motor no torque

L1 standard: EN60204-1 stop category 0; no SIL level

III. Core Technology Specifications

Control axis number: single axis

Control voltage: DC 24 V ±10%, power consumption approximately 7.5–8 W

Control cycle: current 125 μs / speed 250 μs / position 500 μs

Encoder: only 1×ENS (motor-specific), no expansion

Communication: SERCOS III (dual RJ45) + RS232 + Ethernet service port

Digital I/O: 5DI / 3DI/O / 1 relay output

Safety: L1 Start Interlock (not STO)

Panel: single-line LED + 4 keys

Size / Weight: 350×80×220 mm / approximately 1.2 kg

IV. Comparison with Similar Models

CSB01.1C-S3-ENS-NNN-NN-S-NN-FW: No safety, basic model

CSB01.1C-S3-ENS-NNN-L1-S-NN-FW: L1 Start Interlock, prevents incorrect startup

CSB01.1C-S3-ENS-NNN-L2-S-NN-FW: L2 STO (SIL3), safety disconnection of torque

V. Application Scenarios

SERCOS III single-axis system: requires basic safety (prevention of incorrect startup), no STO

General automation equipment: packaging, textiles, ordinary machine tools, with low safety requirements (not SIL)

Budget priority: safety but not SIL3, L1 is cheaper than L2